---
title: Unable to read the QR Code
description: This article explains causes and fixes when a QR code won’t scan, including scope mode settings, QR code size, distance, distortion, dirt, reflections, and other tips to improve readability.
---

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1. [QRQR](https://support.qrqrq.com/en-us?hsLang=en-us)
2. [QRQR - QR Code Reader](https://support.qrqrq.com/en-us/qrqr-qr-code-reader?hsLang=en-us)
3. [Troubleshooting](https://support.qrqrq.com/en-us/qrqr-qr-code-reader?hsLang=en-us#troubleshooting)

# Unable to read the QR Code

If you're unable to scan a QR code, there could be several reasons.

Please try the following methods first.

1. [Check the Scope Mode settings](https://support.qrqrq.com/hc/en-us/articles/8192736910361-Unable-to-read-the-QR-Code?qrqrManagerUserId=noId&service=qrqr_manager&hsLang=en-us#h_01G7BG58B8J58W0BAS6J01BAME)
2. [There is a problem with the QR code](https://support.qrqrq.com/hc/en-us/articles/8192736910361-Unable-to-read-the-QR-Code?qrqrManagerUserId=noId&service=qrqr_manager&hsLang=en-us#h_01G7BG5GRWAHMY20QM8JTS3V47)
3. [The QR code is inverted](https://support.qrqrq.com/hc/en-us/articles/8192736910361-Unable-to-read-the-QR-Code?qrqrManagerUserId=noId&service=qrqr_manager&hsLang=en-us#h_01G7BG5PNJM2F64GT6DFAQJYCT)

 

 

#### 1. Check the Scope Mode settings

"Scope Mode" refers to a function that focuses on scanning QR codes that overlap with the effect area in the center of the camera screen.

- QR codes suitable for Scope Mode 
    - There are multiple QR codes within the screen
- QR codes not suitable for Scope Mode 
    - The QR code does not appear in the center of the camera screen

Please change the Scope Mode settings according to the QR code you want to scan.

![scope3\_en.png](https://support.qrqrq.com/hc/article_attachments/29736320503705)

For more information about Scope Mode, please see [here](https://support.qrqrq.com/hc/en-us/articles/900006153806?qrqrManagerUserId=noId&service=qrqr_manager&hsLang=en-us).

 

#### 2. There is a problem with the QR code

A QR code may be difficult or impossible to scan if it meets any of the following conditions:

- Extremely small
- Too far or too close to the camera
- The printing surface is distorted (not flat)
- Partially dirty or damaged
- Reflecting light
- No margin around the QR code

| 汚れた QRコード | 欠損した QRコード | 小さすぎる QRコード | 余白がない QRコード |
| --- | --- | --- | --- |
| ![\_\_\_QR\_\_\_\_.png](https://support.qrqrq.com/hc/article_attachments/36771744789401) | ![\_\_\_\_QR\_\_\_\_.png](https://support.qrqrq.com/hc/article_attachments/36771737023897) | ![\_\_\_\_\_\_QR\_\_\_\_.png](https://support.qrqrq.com/hc/article_attachments/36771744794009) | ![\_\_\_\_\_\_QR\_\_\_\_.png](https://support.qrqrq.com/hc/article_attachments/36771737028121) |

 

In such cases, please try the following:

- Move the camera back and forth to adjust the focus
- Smooth out any wrinkles to make the surface flat
- Wipe off any dirt
- Create a shadow to avoid reflection

If the issue persists after trying the above, please contact us.

- [QRQR - QR Code Reader](https://support.qrqrq.com/en-us/qrqr-qr-code-reader?hsLang=en-us#main-content)

    - [How to use](https://support.qrqrq.com/en-us/qrqr-qr-code-reader?hsLang=en-us#how-to-use)
    - [Troubleshooting](https://support.qrqrq.com/en-us/qrqr-qr-code-reader?hsLang=en-us#troubleshooting)

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